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| You're losing your heart again! But this time it's not so much fun! You're losing that incredible organ, your heart to aging, not romance. The 'aging process' is known to causes specific cardiovascular ... more |
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| Most of us don't need to be told that our ability to perform aerobic activities, such as running, swimming, or biking declines, as we get older. We casually attribute this to the "aging" process.What decline in physical ability are you expecting as you age? ... more |
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| In the first article, "Are You in Shape for Your Age?" of
our Series, "Aging of Your Heart and Blood Vessels is Risky!" we showed
you that the body's ability to perform vigorous exercise decreases by about
50% between the ages of 20 and 80 years. ... more |
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| Oxygen is needed for the body's cells to survive and function.
The heart is the slave to your body's oxygen needs because it must pump
your blood, which is the source ... more |
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| As you get older you might notice that you become short of breath doing activities that caused you no distress at a younger age. To understand why this is happening you need to understand a little bit ... more |
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| In the preceding article "Your Older Heart May Cause You to Feel Short of Breath", we compared the circulatory system to a "great continuous canal". You learned that the flow of blood through this canal system is dependent upon regional differences in pressures throughout the heart and vascular system. This article, the fifth in the series, will explain some age-related changes that affect the heart's ability to pump out blood ... more |
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| You've seen hundreds of times on television hospital dramas. A patient's heart has stopped beating. The doctor grabs two paddles from a red cart and applies them to the patient's chest. He shouts, "stand back", and gives the patient an electric shock through his chest wall. His heart is restarted! This sounds electrifying. You sure wouldn't want that to happen to you! But it does, every time your heart beats. Each heartbeat starts with an electrical impulse along the membrane (or outer skin) of all the individual cells, which make up the heart. So, in essence this scene is played out in your heart on a cellular level millions of times throughout your lifetime ... more |
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| Reality is far more incredible than fiction! The communication between the human brain and the heart is a striking example. This article shows you how the brain communicates with the heart through the nervous system. And, we discuss how, with aging, some of the messages get weakened ...more |
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| When the body is stressed, such as during exercise, the neurotransmitter, norepinephrine, an adrenaline-like substance, is released causing the heart to beat faster and stronger. What happens to this communication with age? This article discusses the effect of aging on this communication ...more |
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| In industrialized nations, over 50% of people in their 50s have what doctors call "hypertension", or "high blood pressure". The medical profession once believed that an increase in systolic blood pressure, the higher number representing the maximum pressure when the heart contracts, as one aged was perfectly normal. But, now we know that high blood pressure at any age is dangerous ...more |
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| Health care consumers, and physicians too, have been accustomed to the idea that "hardening of the arteries" occurs as one gets older. Until recently, it has been erroneously believed that this arterial stiffening is an inevitable component of "normal" aging and beyond an individual's control...more |
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| In article 10 of this Series, "How Badly Are Your Arteries Hardening With Aging?" we discussed large artery structure and function, and we explained why vascular aging is a risk factor for high blood pressure...more |
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| The latest article in this series explains the way in which heart attacks come about, how the condition of your coronary arteries can be assessed, and what your risk factors for coronary heart disease are. There's also a simple method to calculate your risk of having a heart attack some time in the next ten years...more |
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| This article from Dr Ed tells you all you want to know about high blood pressure, in a readily understandable way. It's essential reading for all sufferers from hypertension . . . . . . . more |
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| Have you noticed your heart skipping beats or racing? Skipped beats and extra beats often cause your chest to thump and are referred to as palpitations. Should you be concerned? Read this new article from Dr Ed to get the answer. more |
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This minisite created on: September 05th, 2000 |
